KR20110061871A - Apparatus and system for energy management - Google Patents

Abstract

PURPOSE: An energy management apparatus and system thereof are provided to reduce a cost according to the use of an electric device and to control power supply of an electric device. CONSTITUTION: A power receiving unit(111) applies power from the outside. A power supply unit(112) applies the power to an electric device through the power receiving unit. A communication unit(113) transmits and receives a control parameter for controlling the drive of the electric device. A controller(114) controls the power to the electric device based on the control parameter.

Description

Energy management device and system {APPARATUS AND SYSTEM FOR ENERGY MANAGEMENT}

One embodiment of the present invention relates to an energy management apparatus and system, and more particularly, to an energy management apparatus and system that can reduce the costs associated with the use of electrical / electronic devices.

In general, an energy management system refers to a system capable of controlling a power supply to an electric / electronic device such as a white household appliance through a wired / wireless network.

In the conventional energy management system, in order to prevent unnecessary energy consumption, energy consumption (that is, whether electricity is used) is monitored and notified to the user, or when the user is absent, the power supply of the electric / electronic product is automatically controlled.

However, the conventional energy management system, as described above, can simply notify the user of the energy consumption of the electrical / electronic product, or simply block the power supply to the electrical / electronic device in the absence of the user. There is a problem that it is not possible to control the power supply to the electrical / electronic devices located in a specific region based on the energy consumption in the electrical / electronic devices changing in real time and the power supply capacity of the power provider.

In order to solve the problems of the prior art as described above, the present invention is to propose an energy management apparatus and system that can reduce the cost of using the electrical / electronic device.

According to a preferred embodiment of the present invention to achieve the above object, a power receiver for receiving power from the outside; A power supply for applying power applied through the power receiver to an electric / electronic device; Communication unit for transmitting and receiving a control parameter for controlling the operation of the electrical / electronic device; And a control unit controlling the power supply to apply the power to the electric / electronic device based on the attribute information of the electric / electronic device and the control parameter.

In this case, the control parameter may include at least one of limit energy consumption of the electrical / electronic device, current energy consumption of the electrical / electronic device, and energy use cost information of the electrical / electronic device.

The display device may further include a display unit configured to display at least one of limit energy usage of the electrical / electronic device, current energy usage of the electrical / electronic device, and energy usage cost information of the electrical / electronic device.

The energy management device may further include a user input unit configured to receive attribute information of the electrical / electronic device from a user.

In addition, the power receiver may include a plug that is inserted into an outlet installed outside.

In addition, the power supply may include an outlet into which the plug of the electric / electronic device is inserted.

Further, according to another embodiment of the present invention, a management server for generating a control parameter for controlling the supply of power supplied to the at least one electrical / electronic device from the outside; And receiving the control parameter from the management server, receiving the power, and transferring the applied power to the at least one electric / electronic device based on attribute information of the at least one electric / electronic device and the control parameter. An energy management system is provided that includes at least one energy management device that applies.

According to the present invention, it is possible to reduce the cost of using the electrical / electronic device.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In order to facilitate a thorough understanding of the present invention, the same reference numerals are used for the same means regardless of the number of the drawings.

1 is a view showing the overall appearance of the smart grid-based energy management system 100 according to an embodiment of the present invention.

Smart Grid refers to a next-generation grid that can optimize energy efficiency by integrating IT technology into the existing grid to exchange real-time information in both directions.

In other words, the smart grid is to overcome the inefficiency of the current one-way energy (power) supply, the distributed power system as the core concept. In other words, the smart grid introduces the concept of distributed power that actively utilizes renewable energy such as solar energy and wind energy, as well as existing thermal or nuclear energy, so that the power system can be distributed and operated independently according to the scale. have. Smart grids play the same role as the Internet in the energy sector in that the future grid has a distributed network structure. Table 1 below compares the current grid and smart grid.

Current power grid Smart grid Power supply method Central power Distributed power rescue Radial structure Network structure Communication method One-way communication Two-way communication Technology base Analog / electronic mechanical digital Recovery in case of an accident Manual recovery Semi-automatic recovery and self-healing Facility check Manual Facility Check Remote facility check Control system Regional control system Extensive control system Price information Limited Price Information All price information Customer's choice Limited customer choice Various choices of customers

Smart grid based energy management system (hereinafter, energy management system) 100 according to an embodiment of the present invention is based on the smart grid described above, such as washing machine 130, television 140, electric vehicle 150 It is possible to control the power supply to the electrical / electronic device.

Looking at this in more detail, the energy management system 100 according to an embodiment of the present invention comprises at least one energy management device 110 and the management server 120.

Each of the at least one energy management device 110 receives power from the outside through the plug 111, and the applied power to the at least one electrical / electronic device 130, 140, 150 through the outlet 112, respectively. Is authorized. At this time, the plug 111 is inserted into an outlet (not shown) installed outside such as a house, a building, a factory, etc., and a plug (not shown) of an electric / electronic device is inserted into the outlet 112.

The management server 120 generates a control parameter for controlling the operation of the energy management device 110 to supply power to the electrical / electronic device (130, 140, 150), the control parameter to the communication unit 121 Transmission to the energy management device 110 through.

The energy management device 110 that receives the control parameter through the communication unit 113 supplies the power applied from the outside based on the attribute information of the electrical / electronic device 130, 140, 150 and the received control parameter. (130, 140, 150).

As an example, the attribute information of the electrical / electronic device 130, 140, or 150 may include information about the type of the electrical / electronic device.

According to an embodiment of the present invention, the control parameter may include energy usage cost information (ie, charging information) of the electrical / electronic device 110.

Power is also a product produced by the power provider and provided to the user, and as the control of supply (ie, increase in power generation) becomes difficult to control the supply and demand of the power supply, the power provider manages the user's power demand. By doing so, the power supply and demand is balanced.

As an example, a power provider consumes a percentage of power usage and power supply, such as charging high costs for power consumption at high power usage and low costs for power consumption at low power usage. By setting different levels of billing for electricity, power demand can be managed indirectly.

Here, in order to efficiently manage the power demand as described above, the user needs to know the charging information that changes in real time, and thus the power supplier transmits the charging information on the power consumption to the management server 120, and the management server ( 120 generates and transmits a control parameter including charging information to the energy management device 110, the energy management device 110 based on the charging information, the power supply to the electrical / electronic device 110 through the outlet 112 Authorization can be controlled.

Hereinafter, an operation of controlling the power applied to the electric / electronic device 130, 140, 150 by the energy management system 100 according to an embodiment of the present invention will be described in detail with reference to FIG. 2.

2 is a block diagram showing a detailed configuration of the energy management system 100 according to an embodiment of the present invention.

Referring to FIG. 2, the energy management system 100 according to an embodiment of the present invention may include an energy management device 110 and a management server 120 as described above.

In this case, the energy management apparatus 110 includes a power receiver 111, a power supply 112, a communication unit 113, a controller 114, a display 115, and a user input unit 116. It can be connected to an electrical / electronic device. In addition, the management server 120 may include a communication unit 121, a control command generation unit 122, a user input unit 123, and a display unit 124. Hereinafter, the function of each component will be described in detail.

First, the energy management apparatus 110 according to an embodiment of the present invention will be described below.

The power receiver 111 receives power from the outside. As an example, the power receiver 111 may include a plug as shown in FIG. 1 or may be directly connected to a power supply line existing in a building.

The power supply 112 applies power applied through the power receiver 112 to the electric / electronic device. In this case, the power supply 112 may include a plug as shown in FIG. 1 or may be directly connected to a power receiving line of an electric / electronic device. In this case, the energy management device 110 is preferably installed inside the electrical / electronic device.

The communication unit 113 receives a control parameter for controlling the driving of the electric / electronic device through wired or wireless.

According to an embodiment of the present invention, the control parameter may include at least one of limit energy consumption of the electrical / electronic device, current energy consumption of the electrical / electronic device, and energy use cost information of the electrical / electronic device. In this case, the control parameter may be transmitted directly from the power provider or may be transmitted from the management server 120.

The controller 114 controls the power supply 112 to apply power to the electric / electronic device based on the attribute information of the electric / electronic device and the control parameter. In this case, the attribute information of the electrical / electronic device may include information about the type of the electrical / electronic device.

That is, if the power provider adjusts the cost for energy use in real time to adjust the power demand, the power provider may limit the energy consumption per electrical / electronic device through the management server 120 or directly to the energy management system 100. And at least one of current energy consumption amount and energy use cost information, and the energy management system 100 controls the driving of the electric / electronic device connected to it individually based on the above information.

According to an embodiment of the present invention, the controller 114 turns on / off that the power supply 112 applies power to the electric / electronic device, or the power supply 112 turns on the output voltage of the power source. Alternatively, the output current may be adjusted to be applied to the electric / electronic device.

For example, when the current energy consumption of the electrical / electronic device approaches the limit energy consumption, the controller 114 turns off the power applied to the electrical / electronic device or outputs an output voltage or output of the power applied to the electrical / electronic device. The magnitude of the current can be reduced.

In another example, the control unit 114 is not an essential device (for example, a security device) in which the electric / electronic device must be driven, and when the current energy use cost is high, turn off the power supplied or return to the electric / electronic device. The magnitude of the output voltage or output current of the supplied power source can be reduced.

In addition, according to one embodiment of the invention, the energy management system 100 is based on the priority given to each electrical / electronic device according to the degree of the cost for energy consumption of the at least one electrical / electronic device The drive can be phased off to reduce the cost of using electrical / electronic devices.

For example, when a first priority is given to the security device, a second priority is given to the television, and a third priority is given to the air conditioner, the energy management system 100 can determine the degree of costing. As a result, the driving of the electrical / electronic devices may be blocked in the order of low priority. At this time, the information on the priority is an example of attribute information of the electric / electronic device.

In addition, according to an embodiment of the present invention, the energy consumption in the electrical / electronic device may be measured directly by the controller 114. In this case, the control parameter may not include energy consumption.

In addition, the attribute information of the electrical / electronic device may be stored in advance in the energy management device 110, or may be input from the user through the user input unit 116 described below.

The display 115 displays at least one of limit energy consumption, current energy consumption, and energy use cost information of the electric / electronic device included in the control parameter so that the user can check the information.

The user input unit 116 receives attribute information of the electric / electronic device (eg, type of the electric / electronic device, driving priority of the electric / electronic device, etc.) from the user.

That is, as described above, the energy management device 110 may perform different control operations according to the degree of cost (billing) set for the consumed energy and the type of the connected electric / electronic device. The input unit 116 serves as an interface for receiving such a type of electrical / electronic device from a user.

Next, the management server 120 according to an embodiment of the present invention will be described.

The communicator 121 transmits control parameters to the energy management device 110 via wired or wireless.

The control command generator 122 generates a control parameter transmitted to the energy management device 110.

According to one embodiment of the invention, the control command generation unit 122 via the communication unit 121 from the power supplier to the limit energy consumption of the electrical / electronic devices and the current energy consumption of the electrical / electronic device, and At least one of the energy use cost information may be received, and a control parameter including the above information may be generated.

The display unit 123 displays at least one of limit energy consumption of the electric / electronic device, current energy consumption of the electric / electronic device, and energy use cost information of the electric / electronic device so that the user can check the information.

That is, the user may check the limit energy consumption of the electrical / electronic device, the current energy consumption of the electrical / electronic device, and the electrical / electronic device through the display unit 115 provided in the energy management device 110, or the management server ( It may be checked through the display unit 123 provided in the 120. If the current energy consumption of the electrical / electronic device is measured by the controller 114 of the energy management device 110, the management server 120 measures the energy consumption measured from the energy management device 110 through the communication unit 121. Receive

The user input unit 124 receives attribute information of the electric / electronic device from the user.

That is, the user may input attribute information of the electric / electronic device through the user input unit 116 provided in the energy management device 110 or through the user input unit 124 provided in the management server 120. It may be. If attribute information of the electrical / electronic device is input through the user input unit 124 provided in the management server 120, the management device 120 may input attribute information of the electrical / electronic device input through the communication unit 121. To the energy management device 110.

As such, the energy management system 100 according to an embodiment of the present invention may control the driving of at least one electric / electronic device based on real-time charging information, thereby reducing the cost of using the electric / electronic device. Will be.

3 is a view for explaining the operation of the energy management system 100 according to an embodiment of the present invention to control the driving of a plurality of lighting installations installed in a building. Hereinafter, an operation performed in each step will be described in detail with reference to FIG. 3.

First, the energy management system 100 measures the electricity usage (i.e., energy consumption in all electrical / electronic devices) in step S301, and receives charging information in step S302.

Thereafter, the energy management system 100 determines the degree of charging through step S303 to step S307. The operation according to the degree of charging of the energy management system 100 is as follows.

If it is determined in step S303 that the billed cost is very low (Very Low Cost), the energy management system 100 drives all the lights in step S308.

If it is determined in step S304 that the charge is low, the energy management system 100 prohibits the use of low-efficiency low-efficiency lighting in step S309, and in step S310 unnecessary power and Shut off the leakage power.

If it is determined in step S305 that the charge charged is a normal cost, the energy management system prohibits the use of low-efficiency lighting in step S311, blocks unnecessary power and leaking power in step S312, and In step S313, the hallway lighting and the general lighting are differentially driven, and in step S314, the optimal illuminance of the office is set.

If it is determined in step S306 that the billed cost is High Cost, the energy management system 100 drives only high efficiency lighting with high energy efficiency in step S315, and is associated with work in step S316. Blocks missing illumination, enforces floor forced illumination restriction in step S317, sets minimum illuminance of the office in step S318, and limits the use of additional electrical / electronic devices in step S319.

Finally, when it is determined in step S307 that the charged cost is very high (Very High Cost), the energy management system 100 drives only security equipment and loading equipment in step S320, and in step S321 The use of all lights is limited, and in step S322, the lights are differentially driven for each office.

Thereafter, steps S301 to S322 are repeatedly performed, whereby the energy management system 100 controls the driving of the lamp according to the real-time charging information.

As described above, the present invention has been described by specific embodiments such as specific components and the like. For those skilled in the art to which the present invention pertains, various modifications and variations are possible. Therefore, the spirit of the present invention should not be limited to the described embodiments, and all of the equivalents or equivalents of the claims as well as the claims to be described later will belong to the scope of the present invention. .

1 is a view showing the overall appearance of a smart grid-based energy management system according to an embodiment of the present invention.

2 is a block diagram showing a detailed configuration of a smart grid-based energy management system according to an embodiment of the present invention.

FIG. 3 is a diagram for describing an operation of controlling an operation of a plurality of lighting installations installed in a building by an energy management system according to an exemplary embodiment of the present invention.

Claims (13)

A power receiver receiving power from the outside; A power supply for applying power applied through the power receiver to an electric / electronic device; Communication unit for transmitting and receiving a control parameter for controlling the operation of the electrical / electronic device; And A control unit controlling the power supply to apply the power to the electric / electronic device based on the attribute information of the electric / electronic device and the control parameter Energy management device comprising a. The method of claim 1, The control unit The power supply is on / off of applying the power to the electric / electronic device, or the power supply controls the output voltage or output current of the power to be applied to the electric / electronic device. Energy management device. The method of claim 1, The control parameter is And at least one of marginal energy consumption of the electrical / electronic device, current energy consumption of the electrical / electronic device, and energy usage cost information of the electrical / electronic device. The method of claim 1, The control parameter includes at least one of a marginal energy consumption of the electrical / electronic device and energy usage cost information of the electrical / electronic device; The control unit Measure the current energy consumption of the electrical / electronic device, And based on the current energy consumption of the electrical / electronic device, controlling the power supply to apply the power to the electrical / electronic device. The method according to claim 3 or 4, A display unit for displaying at least one of the limit energy consumption of the electrical / electronic device, the current energy usage of the electrical / electronic device, and the energy usage cost information of the electrical / electronic device Energy management device further comprises. The method of claim 1, User input unit for receiving the attribute information of the electrical / electronic device from the user Energy management device further comprises. The method of claim 1, The power receiver Energy management device comprising a plug that is inserted into an outlet installed on the outside. The method of claim 1, The power supply unit And an outlet into which the plug of the electrical / electronic device is inserted. The method of claim 1, The energy management device Energy management device, characterized in that installed in the electrical / electronic device. A management server for generating a control parameter for controlling a supply of power supplied to at least one electric / electronic device from the outside; And At least one of receiving the control parameter from the management server, receiving the power, and applying the applied power to the at least one electric / electronic device based on the at least one electric / electronic device and the control parameter. One energy management device Energy management system comprising a. The method of claim 10, The control parameter is At least one of a marginal energy consumption of the at least one electrical / electronic device, a current energy consumption of the at least one electrical / electronic device, and energy usage cost information of the at least one electrical / electronic device. Energy management system. The method of claim 11, The management server A display unit for displaying at least one of the threshold energy consumption of the at least one electrical / electronic device, the current energy consumption of the at least one electrical / electronic device, and the energy use cost information of the at least one electrical / electronic device Energy management system comprising a. The method of claim 10, The management server A user input unit for receiving property information of the at least one electrical / electronic device from a user Energy management system comprising a.

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